Refrigerating apparatus



y 1935- F. T. GROTHOUSE I REFRIGERATING APPARATUS Filed April 6, 1954 nQenGofi FPQHK T Gr obhouse,

b H His Attovneg.

Patented July 2, 1935 aoossaa REFRIGERATING ZiPPARAT'US Frank T. Grothouse, Fort Wayne, Ind., assignor to General Electric Company, a corporation oi New York Application April 6, 1934, Serial No. 119,355

8 Claims. (01. 62-416) My invention relates to refrigerating apparatus.

An object of my invention is to provide a compact arrangement for mounting the parts of the refrigerating apparatus within-an enclosing cas- 5 ing and for dissipating heat generated therein.

Further objects and advantages of my invention will become apparent as the following description proceeds, and the features of novelty which characterize my invention will be pointed 10 out with particularity in the claims annexed to and forming a part of this specification.

For a better understanding of my invention, reference may be had to the accompanying drawing in which Fig. 1 is a perspective view partly 15 broken away of refrigerating apparatus embodying my invention; Fig. 2 is a perspective view of the mounting frame for supporting the motor and compressor; and Fig. 3 is a perspective view partly broken away of the heat exchanger.

20 Referring to the drawing, the refrigerating apparatus is shown as a part of a room cooler having an outer casing i. The refrigerating apparatus is enclosed within a casing in formed between one end of the casing i and a partition 2 extend- :5 ing across the casing. The refrigerating apparatus includes a compressor l2 and a motor i3 which are mounted on a supporting frame within the casing. The supporting or mounting frame comprises a base 3 to which are secured vertical plates 4 and 5 welded thereto at 6 and l. A horizontal plate 8 is attached to the upper ends of the vertical plates 4 and 5 and is supported thereby above and spaced from the base plate 3. Reinforcing members 9 are welded at the junctions :5 between the horizontal and vertical plates and assist in fastening the plates together to form a rigid construction. The vertical plate 4 is spaced from the end of easing la. and has an opening l3 therein through which air may circulate from 0 the end of the casing into the interior of the mounting frame. The vertical plate 5 is arranged against the partition 2. The horizontal plate 8 has an opening l8 therein adjacent the end plate 5, and a heat-exchange device l9 which is prefer- 5 ably a radiator through which cooling water may be circulated, is supported at the opening la. The mounting frame extends substantially across the casing la and defines an air passage within the casing extending between the horizontal plate 8, l) which acts as a bailie, and the base of the casing, and communicates with the casing la at either end through openings l0 and I8. The mounting frame is secured to the base of easing la bybolts II. 5 A compressor I2 is mounted on the horizontal plate 8 and is driven by an electric motor, I3 through a drive which includes pulleys and I5, mounted respectively on the compressor and motor, and belts H6. The motor I3 is supported at the bottom of casing in on the plate 3 by verti- 5 cally adjustable bolts 51. The vertical position of the motor l3 may be varied by means of the bolts ii to vary the tension of belt 56. A fan 20 mounted on the shaft of motor i3 within the opening l0 circulates air from opening iii, through the pa s- 10- sage between baiiie 8 and the casing ta, over the Q motor it, through the heat-exchange device l9 arranged in opening it, and over the compressor i2. A water-cooled condenser 22, comprising concentric tubes, is arranged on the walls of the casing to and surrounds the compressor l2. The refrigerant to be condensed flows to one of the concentric tubes of condenser 22, through tube 23, l;

cooled by cooling water flowing in the other concentric tube, and fiows from the condenser to areceiver 24 through tube 25.

The expanded refrigerant is conducted from the evaporator by pipe 32 to one of the concentric tubes of a heat exchanger 33 arranged at the back of the casing la. The other of the concentric tubes contains liquid refrigerant which is conducted from the receiver 24' by the pipe 34 to the heat exchanger 33 and is conducted from the heat exchanger to the evaporator by pipe 35. A filter chamber 36 is arranged in the pipe 35 to remove foreign matter from the refrigerant. By this arrangement the expanded refrigerant is used to cool the liquid refrigerant and the efliciency of the refrigerating system is improved. From the heat exchanger 33 the expanded refrigerant is led to the compressor by pipe 31. The compressed refrigerant flows from the compressor l2 to the condenser 22 by pipe 23 and is condensed in the condenser 22. The liquid refrigerant flows from the condenser 22 to the receiver 40 24 by way of pipe 25. In the operation of the refrigerating apparatus, the compressed refrigerating fluid is cooled by water flowing through the condenser 22 and the water Jacket in the compressor l2, and also further cooled by the expanded refrigerant flowing in heat exchanger 33. I i

The cooling water is conducted within the easing by pipe 26 through a control valve 21 to the heat exchange device l9. From the heat exchange device it, the cooling water is conducted to the condenser 22 by pipe 23. The cooling water leaves the condenser by pipe 30 and flows to the water jacket in the compressor and is conducted from the compressor to a point outside thecasingby pipe 3|.

Heat is removed from the air within the casing la by heat exchange device I 9, through which the cooling water circulates. By this arrangement it is possible to arrange the refrigerating apparatus compactly within an enclosing casing so as to dissipate heat from the apparatus and to maintain the air within the casing at a temperature low enough so that the electric motor [3 will not overheat.

Although I have shown a particular embodiment of my invention, I do not desire to be limited to the construction described, and I intend in the appended claims to cover all modifications which do not depart from the spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent of the United States, is:

1. A refrigerating apparatus comprising a closed casing, means including a plate arranged within said casing and spaced therefrom for defining an air passage between said plate and said casing, a motor element and a compressor element driven thereby arranged on opposite sides of said plate, one of said elements-being supported by said plate, means including a fan for circulating air around said plate and over said motor and said compressor, and means including a heat exchange device arranged in the path of air circulating over said motor and said compressor for cooling the circulated air.

2. A refrigerating apparatus comprising a closed casing, means including a plate having an opening therein arranged within said casing and spaced therefrom for defining an air passage between said plate and said casing communicating at either end with said casing, a motor element and a compressor element driven thereby arranged on opposite sides of said plate, one of said elements being supported by said plate, means including a fan for circulating air around said plate through said opening and over said motor and said compressor, and means including a heat exchange device arranged at said opening for cooling the circulated air.

3. A refrigerating apparatus comprising a closed casing, means including a. horizontally disposed baflie for forming an air passage between said battle and said casing communicating at either end with said casing, a motor mounted below said baflle, a compressor mounted on and above said baflle, means including a fan for cir-- casing, means including a horizontally disposed baille for forming an air passage between said baflle and said casing communicating at either end with said casing, motor mounted below fi 'rounding said compressor, and means for circusaid baflle, a compressor mounted on and above said baffle, means including a fan for circulating air around said bailie and over said motor and said compressor, ;a condenser arranged about the walls of said'casing, means including a heat exchange device arranged in the path of the circulating airfor cooling the circulated air, and means for circulating cooling water through said heat exchange device and said condenser.

5. A refrigerating apparatus comprising a closed casing, means including a horizontally disposed baflie for forming an air passage between motor .and said compressor, a condenser arranged on the walls of said casing and surrounding said compressor, means including a heat exchange device arranged in the path of the circulating air for cooling the circulated air, and means for circulating cooling water through said heat exchange device and said condenser.

6. A refrigerating apparatus comprising a closed casing, a motor mounted at the bottom of said casing, a mounting frame having a horizontal plate arranged above said motor, a compressor mounted on said plate, said plate defining a passage communicating at either end with said casing for circulating air over said motor, means including a fan for circulating air around said plate and over said motor and said-compressor, and means including a heat exchange device arranged in the path of the circulating air for cooling the circulated air. '7. A refrigerating apparatus comprising a closed casing, a mounting frame within said casing including a vertical end plate spaced from said casing and having an opening therein and a horizontal plate spaced from said casing and supported by said end plate, said horizontal plate opening therein, a motor and a compressor-arranged on opposite sides of said horizontal plate, means including a fan arranged at the opening of said end plate for circulating air through the opening in said end plate and around said horizontal plate and over said motor and said compressor, and means including a heat exchange device arranged at the opening in said horizontal plate for cooling the circulated air.

8. A refrigerating apparatus comprising a closed casing, a mounting frame within said casing including a vertical end plate spaced from said casing having an opening therein-and a horizontal plate spaced from said casing and supported by said end plate, said horizontal plate having an opening therein, a motor and a compressor arranged on opposite sides of said horizontal plate, means including a fan arranged at the opening in said end plate for circulating air through the opening in said end plate and around said horizontal plate and over said motor and said compressor, means including a heat exchange device arranged at the opening in said horizontal plate for cooling the circulated air, a condenser anged on the walls of said casing and surlating cooling water through said heat exchange device and said condenser.

FRANK T. GROTHOUSE. 

